Password based server aided key exchange

Authors:
Yvonne Cliff;Yiu Shing Terry Tin;Colin Boyd
Affiliations:
Information Security Institute, Queensland University of Technology, Brisbane, Australia;Information Security Institute, Queensland University of Technology, Brisbane, Australia;Information Security Institute, Queensland University of Technology, Brisbane, Australia
Venue:
ACNS'06 Proceedings of the 4th international conference on Applied Cryptography and Network Security
Year:
2006

Citing 13
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Abstract

We propose a new password-based 3-party protocol with a formal security proof in the standard model. Under reasonable assumptions we show that our new protocol is more efficient than the recent protocol of Abdalla and Pointcheval (FC 2005), proven in the random oracle model. We also observe some limitations in the model due to Abdalla, Fouque and Pointcheval (PKC 2005) for proving security of such protocols.